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All results from a given calculation for C4H9NO (Butanamide)

using model chemistry: B3LYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/6-31G(2df,p)
 hartrees
Energy at 0K-287.867155
Energy at 298.15K-287.877348
Nuclear repulsion energy238.428714
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B3LYP/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3738 3608 30.25      
2 A 3601 3475 31.14      
3 A 3105 2997 44.83      
4 A 3102 2994 38.37      
5 A 3079 2971 5.64      
6 A 3051 2944 18.51      
7 A 3041 2935 24.05      
8 A 3027 2921 25.74      
9 A 3011 2906 12.16      
10 A 1798 1735 256.57      
11 A 1616 1560 102.51      
12 A 1509 1456 4.06      
13 A 1499 1447 5.16      
14 A 1491 1438 2.42      
15 A 1466 1414 4.60      
16 A 1413 1363 2.15      
17 A 1406 1357 63.53      
18 A 1358 1311 31.22      
19 A 1318 1272 26.71      
20 A 1265 1221 58.65      
21 A 1249 1205 5.69      
22 A 1135 1096 0.69      
23 A 1115 1076 1.78      
24 A 1074 1037 0.99      
25 A 1050 1013 2.91      
26 A 928 895 1.95      
27 A 886 855 0.84      
28 A 840 811 3.19      
29 A 749 723 5.35      
30 A 661 638 4.87      
31 A 614 592 14.31      
32 A 516 498 3.91      
33 A 425 410 1.80      
34 A 341 329 2.69      
35 A 245 236 0.18      
36 A 184 177 8.93      
37 A 159 153 180.76      
38 A 87 84 0.95      
39 A 28 27 4.37      

Unscaled Zero Point Vibrational Energy (zpe) 28589.2 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 27588.6 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B3LYP/6-31G(2df,p)
ABC
0.28973 0.06082 0.05230

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.737 -0.206 0.038
H2 -2.875 -0.424 1.103
H3 -3.529 0.486 -0.264
H4 -2.887 -1.142 -0.512
C5 -1.353 0.389 -0.232
H6 -1.253 0.633 -1.296
H7 -1.227 1.333 0.304
C8 -0.214 -0.548 0.176
H9 -0.245 -1.479 -0.403
H10 -0.334 -0.841 1.229
N11 2.197 -0.764 -0.132
H12 3.134 -0.395 -0.121
H13 2.071 -1.760 -0.098
C14 1.160 0.108 0.046
O15 1.329 1.311 0.102

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 C8 H9 H10 N11 H12 H13 C14 O15
C11.09611.09431.09611.52982.16472.17252.54942.83302.75614.96835.87605.05453.90894.3397
H21.09611.76791.76742.18163.08322.53832.82043.20962.57835.23176.13285.26224.20484.6566
H31.09431.76791.76742.17792.50342.51793.50003.82973.76825.86246.72246.03584.71384.9407
H41.09611.76741.76742.18532.53743.09062.82352.66623.10515.11276.08015.01394.27224.9163
C51.52982.18162.17792.18531.09641.09381.53042.17902.16513.73434.55674.04502.54372.8558
H62.16473.08322.50342.53741.09641.74752.15442.50483.06513.89964.65624.26732.80973.0131
H72.17252.53832.51793.09061.09381.74752.14093.06252.52654.03954.71074.53992.69532.5640
C82.54942.82043.50002.82351.53042.15442.14091.09741.09952.44073.36502.60121.52812.4170
H92.83303.20963.82972.66622.17902.50483.06251.09741.75522.55903.55982.35282.16673.2430
H102.75612.57833.76823.10512.16513.06512.52651.09951.75522.87533.74842.89632.12922.9438
N114.96835.23175.86245.11273.73433.89964.03952.44072.55902.87531.00691.00461.36732.2615
H125.87606.13286.72246.08014.55674.65624.71073.36503.55983.74841.00691.73022.04452.4939
H135.05455.26226.03585.01394.04504.26734.53992.60122.35282.89631.00461.73022.08383.1656
C143.90894.20484.71384.27222.54372.80972.69531.52812.16672.12921.36732.04452.08381.2157
O154.33974.65664.94074.91632.85583.01312.56402.41703.24302.94382.26152.49393.16561.2157

picture of Butanamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 109.926 C1 C5 H7 110.705
C1 C5 C8 112.833 H2 C1 H3 107.630
H2 C1 H4 107.453 H2 C1 C5 111.288
H3 C1 H4 107.584 H3 C1 C5 111.105
H4 C1 C5 111.583 C5 C8 H9 110.964
C5 C8 H10 109.734 C5 C8 C14 112.541
H6 C5 H7 105.851 H6 C5 C8 109.081
H7 C5 C8 108.186 C8 C14 N11 114.792
C8 C14 O15 123.095 H9 C8 H10 106.058
H9 C8 C14 110.146 H10 C8 C14 107.120
N11 C14 O15 122.112 H12 N11 H13 118.665
H12 N11 C14 118.095 H13 N11 C14 122.191
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.387      
2 H 0.113      
3 H 0.115      
4 H 0.110      
5 C -0.149      
6 H 0.103      
7 H 0.126      
8 C -0.291      
9 H 0.098      
10 H 0.123      
11 N -0.522      
12 H 0.258      
13 H 0.255      
14 C 0.405      
15 O -0.358      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.344 -3.396 0.021 3.413
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.561 -5.988 -0.097
y -5.988 -38.409 -0.271
z -0.097 -0.271 -37.348
Traceless
 xyz
x 5.317 -5.988 -0.097
y -5.988 -3.454 -0.271
z -0.097 -0.271 -1.863
Polar
3z2-r2-3.726
x2-y25.847
xy-5.988
xz-0.097
yz-0.271


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.655 -0.341 -0.151
y -0.341 8.114 0.056
z -0.151 0.056 6.129


<r2> (average value of r2) Å2
<r2> 217.827
(<r2>)1/2 14.759